package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"欢迎登录","登录");
        try(
                Connection connection = DBUtill.getConnection()
        ) {
            Statement statement = connection.createStatement();
            Scanner s = new Scanner(System.in);
            String sql = "SELECT id,username,password,nickname,age " +
                         "FROM userinfo " +
                         "WHERE username = '" + userInfo.getUsername() + "' " +
                         "AND password = '" + userInfo.getPassword() + "'";
            System.out.println(sql);
            ResultSet rs =  statement.executeQuery(sql);
            if (rs.next()){
                System.out.println("登录成功,欢迎你"+rs.getString("nickname"));
            }else {
                System.out.println("登录失败,用户名或密码不正确");
            }


        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}
